Which of these characters selected by Mendel are located on the same chromosomes ?

Options

A. Seed color and seed shape
B. Flower color and flower position
C. Flower color and seed color
D. Stem height and seed shape

Answer

To solve the question of which characters selected by Mendel are located on the same chromosome, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Mendel's Experimental Material**: Mendel used the pea plant, *Pisum sativum*, for his genetic experiments.

2. **Understand Chromosome Number**: The pea plant has a total of 14 chromosomes.

3. **List of Characters Studied by Mendel**: Mendel studied seven characters in pea plants, which included traits such as seed color, flower color, plant height, pod color, and seed shape.

4. **Determine Chromosome Locations**: Mendel's characters were located on four different chromosomes:
- Chromosome 1: Seed color and flower color
- Chromosome 4: Plant height and flower position (axial or terminal)
- Chromosome 5: Pod color (green or yellow)
- Chromosome 7: Seed shape (round or wrinkled)

5. **Identify Characters on the Same Chromosome**: From the information above, we can see that:
- The gene for seed color and the gene for flower color are both located on chromosome 1.

6. **Select the Correct Option**: Since the question asks which characters are located on the same chromosome, the correct answer is the combination of seed color and flower color, which are both on chromosome 1.

### Final Answer:
The characters selected by Mendel that are located on the same chromosome are **seed color and flower color** (Chromosome 1).

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